48 citations · 225 across the 11 of their papers we have counts for
4 papers · 1 filter
Towards a non-perturbative computation of the RGI strange quark mass with two dynamical flavors
Michele Della Morte, Roland Hoffmann, Francesco Knechtli +4
The non-perturbative running of the quark mass in the Schroedinger functional scheme is computed over a large energy range (covering scales differing by two orders of magnitude). T…
Cutoff effects in the O(N) sigma model at large N
Ulli Wolff, Francesco Knechtli, Bjoern Leder +1
The computation of the step scaling function for the finite size mass-gap in the O(N) sigma model at large N is reviewed. Practically exact nonperturbative results become available…
Cutoff Effects in O(N) Nonlinear Sigma Models
Francesco Knechtli, Bjoern Leder, Ulli Wolff
In the nonlinear O(N) sigma model at N=3 unexpected cutoff effects have been found before with standard discretizations and lattice spacings. Here the situation is analyzed further…
Non-perturbative renormalization of the axial current with dynamical Wilson fermions
Michele Della Morte, Roland Hoffmann, Francesco Knechtli +2
We present a new normalization condition for the axial current, derived from the PCAC relation with non-vanishing quark mass. This condition is expected to reduce mass effects in t…